Author: jhb
Date: Wed Jan 31 18:00:23 2018
New Revision: 328632
URL: https://svnweb.freebsd.org/changeset/base/328632
Log:
Remove limitation of 6 arguments for makecontext() on mips.
This implementation spills additional arguments on the stack so works
fine with more than 6 arguments. I believe the check was just copied
over from sparc64 (which doesn't support spilling onto the stack)
Sponsored by: DARPA / AFRL
Modified:
head/lib/libc/mips/gen/makecontext.c
Modified: head/lib/libc/mips/gen/makecontext.c
==============================================================================
--- head/lib/libc/mips/gen/makecontext.c Wed Jan 31 17:57:59 2018
(r328631)
+++ head/lib/libc/mips/gen/makecontext.c Wed Jan 31 18:00:23 2018
(r328632)
@@ -66,7 +66,7 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int
* so that we can mark a context as invalid. Store it in
* mc->mc_regs[ZERO] perhaps?
*/
- if (argc < 0 || argc > 6 || ucp == NULL ||
+ if (argc < 0 || ucp == NULL ||
ucp->uc_stack.ss_sp == NULL ||
ucp->uc_stack.ss_size < MINSIGSTKSZ)
return;
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